Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 91, Issue 9, Pages 769-773Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2007.01.006
Keywords
dye-sensitized solar cells; ZnO vertical nanowire arrays; organic dye; exciton dissociation; charge transport
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We fabricate dye-sensitized solar cells (DSSC) using vertically oriented, high density, and crystalline array of ZnO nanowires, which can be a suitable alternative to titanium dioxide nanoparticle films. The vertical nanowires provide fast routes or channels for electron transport to the substrate electrode. As an alternative to conventional ruthenium complex, we introduce Rose Bengal dye, which acts as a photosensitizer in the dye-sensitized solar cells. The dye energetically matches the ZnO with usual KI-I-2 redox couple for dye-sensitized solar cell applications. (C) 2007 Elsevier B.V. All rights reserved.
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